1.0.0 Forge 1.8.x - 1.12.x is a beta file of the Minecraft mod Log4J2 JNDI Exploit Fix for Forge, made for Minecraft 1.9.1, 1.9.3, 1.8.7, 1.10-Snapshot, 1.9.4, 1.9.2, 1.8.4, 1.12.1, 1.12, 1.8.8, 1.10.2, 1.8-Snapshot and more. It was published on December 10, 2021 and is 0 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Log4J2 JNDI Exploit Fix mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.